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Heating-type differential water pressure switch

A water pressure difference and heating type technology, which is applied in the direction of electric switches, electrical components, circuits, etc., can solve the problems of switch function failure, water freezing, and water pressure difference switch unable to send out switching signals, so as to improve product performance and function lasting effect

Pending Publication Date: 2020-02-14
JIEAIXI ELECTROMECHANICAL KUNSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the ambient temperature is ≤0°C, the water inside the differential pressure switch body will freeze, and after the water freezes the diaphragm, magnet, and spring inside the body, the differential pressure switch cannot send a switch signal, and the switch function will fail.

Method used

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  • Heating-type differential water pressure switch

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Effect test

Embodiment approach

[0014] figure 1 An embodiment of a heating type water pressure differential switch of the present invention is shown, including a housing 1, the housing includes an upper housing and a lower housing arranged up and down, and the housing 1 is provided with an upper water port 3 and a The lower water inlet 4, the housing 1 is provided with a first magnet 5 that can move upward under the water pressure difference between the upper and lower water inlets, the upper end of the first magnet 5 is against a pressure spring 6, and the housing 1 The upper end of the body 1 is provided with a second magnet 7 that repels the first magnet 5 and can move up and down. The housing 1 is also fixed with a micro switch 8 that controls the opening and closing of the equipment with water. The contacts of the micro switch 8 9 is located above the second magnet 7, the first magnet 5 moves up and pushes the second magnet 7 to touch the micro switch to control the opening and closing of the micro swit...

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Abstract

The invention discloses a heating-type differential water pressure switch, which comprises a shell. The shell comprises an upper shell and a lower shell arranged up and down. One side of the shell isalso provided with a heating cavity, which is close to the inner chamber of the shell. A heating body is arranged in the heating cavity. The heating body is connected to an external power supply through a wire. The heating-type differential water pressure switch of the invention uses the heating body to heat the body to ensure that water inside the body will not be frozen, so that the movement ofa magnet is not affected and the function is continuous and effective. Compared with an existing differential water pressure switch, the heating-type differential water pressure switch has the following advantages: with the additional arrangement of the electric heating function, the heating-type differential water pressure switch meets the requirement of usage in a low-temperature environment of0 to 30 DEG C, and the product performance is improved.

Description

technical field [0001] The invention relates to the technical field of flow switches, in particular to a heating type water pressure differential switch for monitoring the water flow pressure difference value of the inlet and outlet water ports of a central air-conditioning inner plate heat exchanger or a shell-and-tube heat exchanger. Background technique [0002] At present, the existing water pressure differential switch sends a switch signal through the change of the water flow pressure difference at the inlet and outlet water ports of the central air-conditioning inner plate heat exchanger or the shell-and-tube heat exchanger. However, when the ambient temperature is ≤0°C, the water inside the differential pressure switch body will freeze, and after the water freezes the diaphragm, magnet, and spring inside the body, the differential pressure switch cannot send a switch signal, and the switch function will fail. Contents of the invention [0003] In order to overcom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/26H01H35/28
CPCH01H35/26H01H35/28
Inventor 金元龙
Owner JIEAIXI ELECTROMECHANICAL KUNSHAN CO LTD
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